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Deformed Wing Virus... An Affliction of Honey Bees

Deformed Wing Virus A close look at deformed wing virus revealed the following: 1. DWV is not a rapid colony killer. It can be detected in bees where no signs of disease are noticed. 2. Adult bees can carry the virus and not die. 3. Mites transmit the virus to pupae and nurse bees. 4. If the host bee shows deformed wings, any mite feeding on that pupa is viruliferous. But a mite feeding on an asymptomatic, DWF infected host does not necessarily pick up the virus. Also, infected mites do not always transmit the virus. Acute Paralysis Virus We usually blame colony collapse on deformed wing virus when Varroa mites are involved. But, a study conducted in Poland determined that DWV was nowhere to be found, while colonies died in large numbers. Samples of dead bees, sent to England for analysis, revealed that the bees had very high titers of acute paralysis virus. There was some APV found in late summer colonies that showed no signs of disease,

Originated... ?? MM 2004, Revised... dd mm 2004,
Coding Standard 2004 Issue 2 
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